Air sounding through closed/partially closed vavles resulting in hissing sound under certain conditions

Outside/inside pack turbine sound, dependent on airflow

CDU buttons

Throttle all positions sound, detend, relock, unlock for each throttle.

Systems test aurals

GPWS test aurals

Oxygen test

People boarding sound

Airport surround sound

Fire test

Stall/shaker test

Standby instruments rattle sound

Passengers talking sound on demand

Autopilot sounds.

Wiper sounds

Rain internal/external

Engines

General Electric CF34 turbines made exactly with tones and volumes of the real prototype

Start/Shut

Reverse

Internal/External 360 degree sounds

Landing gear, flight controls

Landing gear/main gear rolling dependent on speed

Front landing gear rattle in air sound

Gear up/down sounds

Gear air sounds when extended

Spoiler air sound

Touchdown internal external all three gears dependent on how hard you touchdown

Wind sound

Turbulence sound (coming up)

Other:

Apu all 360 internal external

Apu exhaust sound

Apu dependent on open closed door

Much more....

Version 2 fixes:

All sound levels have been preset to maximum realism, advise not to change them.

APTCAB containing now not only passengers sounds, which could be activated by assigned button in x-plane (watch extra features video inside) but could be also activated by switching seat belts signs to off.